US5398392A - Apparatus for treating yarn with fluid - Google Patents

Apparatus for treating yarn with fluid Download PDF

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Publication number
US5398392A
US5398392A US08/143,134 US14313493A US5398392A US 5398392 A US5398392 A US 5398392A US 14313493 A US14313493 A US 14313493A US 5398392 A US5398392 A US 5398392A
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yarn
fluid conduits
fluid
components
conduits
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US08/143,134
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English (en)
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Takao Sano
Hiroshi Tsubakimori
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Toray Industries Inc
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Toray Industries Inc
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Priority claimed from JP04294168A external-priority patent/JP3141578B2/ja
Priority claimed from JP04294927A external-priority patent/JP3141579B2/ja
Priority claimed from JP04295585A external-priority patent/JP3141580B2/ja
Application filed by Toray Industries Inc filed Critical Toray Industries Inc
Assigned to TORAY INDUSTRIES, LTD. reassignment TORAY INDUSTRIES, LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SANO, TAKAO, TSUBAKIMORI, HIROSHI
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams

Definitions

  • the present invention relates to an apparatus for interlacing the filaments of a yarn, which consists of a multifilament, by the effect of a fluid, thereby providing the yarn with high coherence.
  • a yarn consisting of an as-spun or zero twist multifilament is interlaced mainly because of its difficult handling due to poor coherence.
  • one component B 1 of the two components B 1 and B 2 which interlace yarn, is provided with fluid conduits P 1 and P 1 , which are inclined against each other toward the inner wall of the other component B 2 .
  • one component B 1 is provided with fluid conduits P 2 and P 2 , which eject a fluid toward the inner wall of the other component B 2 , so that they are in parallel to each other and are orthogonal with the inner wall.
  • a yarn to be interlaced is allowed to run between the components B 1 and B 2 , and a fluid is ejected from the fluid conduits P 1 and P 1 toward the other component B 2 , thus interlacing the yarn by the effect of the fluid.
  • the fluid conduits are provided only in one of the components.
  • the yarn is interlaced by a fluid ejected from the fluid conduits provided in one of the two components. Therefore, the yarn to be treated is interlaced while it vibrates two-dimensionally between the two fluid conduits. Hence, it is necessary to enhance the frequency of the exposure of the yarn, which is to be interlaced, to the fluid ejected from the fluid conduits, the resulting coherence of the yarn depending on the exposure frequency.
  • the filaments constituting the multifilament yarn are positively exposed to the colliding jet by contacting with and bouncing against the inner wall of the two components.
  • the material and surface treatment condition significantly influence the quality factors of yarn such as frays, strength, and elongation percentage.
  • the apparatus is not suited for a yarn manufacturing process for semi-drawn yarns, such as POY (pre-oriented yarn), tire cords or the like for which maximum efforts should be made to avoid causing deterioration in yarn quality.
  • a yarn manufacturing process for semi-drawn yarns such as POY (pre-oriented yarn), tire cords or the like for which maximum efforts should be made to avoid causing deterioration in yarn quality.
  • the apparatus is not capable of providing wide, flat yarns such as staple and tow with coherence while maintaining their flatness intact because the flatness is crushed at interlaced points.
  • the apparatus disclosed in FIG. 3 and FIG. 38 of U.S. Pat. No. 2,985,995 is intended to provide a multifilament yarn with coherence (interlacing).
  • it is not designed to interlace flat yarns such as staple and tow while maintaining their flatness intact.
  • the yarn after it is interlaced presents an approximately circular cross section; therefore, the apparatus has a disadvantage in v that it cannot maintain the original flatness of the yarn.
  • the fluid ejected from the fluid conduits is used for interlacing yarns, it is necessary to accomplish the most effective use of the potential energy, i.e., the dynamic pressure, that the fluid has.
  • the conventional treating apparatuses are not satisfactory in the aspects of increasing the frequency of exposing yarn to the fluid and of the efficient use of the dynamic pressure of the fluid.
  • Examined Japanese Utility Model Publication (KOKOKU) No. 52-44689 discloses a treating apparatus which uses the same components facing against each other and has a plurality of fluid conduits, but the axes of the fluid conduits are not shared or crossed.
  • This apparatus is designed to twist a yarn by positively generating a revolving stream in a treating region, which has a circular cross section, and therefore it provides a multifilament yarn, which continuously runs, with false-twisting. Accordingly, the apparatus utterly differs, in the objects and the obtained form of yarn, from the treating apparatus designed to provide a yarn with coherence which is an object of the present invention.
  • the first object of the present invention is to provide an apparatus for treating yarn with fluid suited for a yarn manufacturing process which needs to avoid causing deterioration in yarn quality as much as possible.
  • the second object of the present invention is to provide an apparatus for treating yarn with fluid which is capable of interlacing flat yarns consisted of a multifilament while maintaining their flatness intact.
  • a common object of the present invention is to provide an apparatus for treating yarn with fluid which is designed to restrain a yarn to be interlaced from jumping out of the fluid ejected from fluid conduits, thereby increasing the frequency of the exposure of the yarn to the fluid and presenting good interlacing performance.
  • a further object of the present invention is to provide an apparatus for treating yarn with fluid which is designed to utilize the dynamic pressure of the fluid, which interlaces yarns, as effectively as possible, thereby enhancing the efficiency of the use of the dynamic pressure which the fluid has.
  • the inventors observed the relationships obtained between the fluid ejected from fluid conduits and the yarns interlaced by the fluid, with different layouts of the fluid conduits, and carefully studied the relationships from the viewpoint of the layout of the fluid conduits.
  • the inventors discovered a fact that the best result is obtained when the axes of the fluid conduits formed in both the first and second components are shifted against each other and inclined against each component so that the fluid is ejected toward a yarn treating region, which is formed in a section substantially orthogonal with the yarn running direction.
  • the fluid conduits formed both in the first and second components are arranged as described above, the fluid ejected from these fluid conduits and the inner walls of the first and second components form a yarn treating region.
  • the inventors found that when a yarn consisting of an as-spun multifilament is allowed to pass through the yarn treating region, the encountering frequency of the yarn and the fluid increases in interlacing the filaments, the coherence of the yarn improves and the yarn is effectively restrained from jumping out of the yarn treating region, thus permitting effective utilization of the dynamic pressure of the fluid.
  • an apparatus for treating yarn with fluid which is designed to allow a yarn consisting of an as-spun multifilament to run between first and second components, which have inner walls arranged facing against each other with a specified gap provided between them, and to interlace said filaments by a fluid in order to provide said yarn with coherence, wherein said first and second components are provided with at least one fluid conduit opened in each of said inner walls, said fluid conduits form a yarn treating region with axes of said fluid conduits and said inner walls of said first and second components, a specified distance is provided between said axes of said fluid conduits in a section which is substantially orthogonal with a running direction of said yarn, and said fluid conduits are inclined so that said fluid ejected from said fluid conduits is directed toward said yarn treating region.
  • the yarn to be interlaced does not jump out of the yarn treating region and the frequency of encounter between the yarn and the fluid is increased, resulting in good yarn interlacing performance.
  • the quality of the yarn to be interlaced is not deteriorated.
  • the fluid ejecting from the fluid conduits is directed toward the yarn treating region, permitting effective utilization of the dynamic pressure of the fluid.
  • said inner walls of said first and second components have flat surfaces which constitute a major part of said yarn treating region.
  • said fluid conduits are oriented so that they are substantially orthogonal with said running direction of said yarn in a section in said running direction of said yarn.
  • said fluid conduits are located aslant to said running direction of said yarn in a section in said running direction of said yarn.
  • said inner walls of said first and second components are provided with projections which jut out toward their associated inner walls at portions adjoining said major part constituting said yarn treating region in a section which is substantially orthogonal with said running direction of said yarn.
  • said first and second components are provided with at least one sub fluid conduit for ejecting a fluid to said yarn treating region, which sub fluid conduits are provided between axes of said fluid conduits and which are arranged in parallel to and face against said fluid conduits in a section which is substantially orthogonal with said running direction of said yarn.
  • said inner walls of said first and second components have flat surfaces which constitute said major part of said yarn treating region.
  • said fluid conduits and sub fluid conduits are oriented so that they are substantially orthogonal with said running direction of said yarn in a section in said running direction of said yarn.
  • said fluid conduits and sub fluid conduits are located aslant to said running direction of said yarn in a section in said running direction of said yarn.
  • an apparatus which is designed to allow a yarn consisting of an as-spun multifilament to run between first and second components which have inner walls located facing against each other with a specified gap provided between them and to interlace said filaments with each other by a fluid, thereby providing said yarn with coherence, wherein said first and second components are provided with a plurality of fluid conduits for ejecting said fluid in a section, which is substantially orthogonal with a running direction of said yarn, said fluid conduits are opened in said respective inner walls, arranged facing against each other, and formed between axes of adjoining fluid conduits in parallel with a specified distance provided between them.
  • said plurality of fluid conduits are provided with their axes displaced so that said fluid conduits facing against each other share an overlapping area in a plane of projection which is perpendicular to said axial directions of respective fluid conduits.
  • a size of said common area ranges from 50% to 100% of said projected area of said respective fluid conduits.
  • said inner walls, in which said plurality of fluid conduits are opened, of said first and second components are flat surfaces.
  • each of said first and second components has an additional fluid conduit for jetting said fluid toward said yarn, which additional fluid conduit is provided outside said plurality of fluid conduits facing against each other.
  • the performance of the apparatus according to the present invention described above is further improved.
  • FIG. 1 is a perspective view of an apparatus for treating yarn with fluid related to the first embodiment of the first invention of the present invention
  • FIG. 2 is a front view which shows the section of the apparatus of FIG. 1;
  • FIG. 3 is a left side view of the apparatus of FIG. 1;
  • FIG. 4 is an enlarged view which shows the relationship between the fluid conduits provided in the nozzle plates of the apparatus for treating yarn with fluid and a yarn treating region;
  • FIG. 5 is an enlarged view which shows the fluid conduits provided in the nozzle plates of the apparatus, the orientation of the fluid conduits being opposite from that shown in FIG. 4;
  • FIG. 6 is a cross-sectional view which schematically shows the fluid conduits which are provided in the nozzle plates of the apparatus and which are oriented so that they are substantially orthogonal with the yarn running direction in the section of the yarn running direction;
  • FIG. 7 is a cross-sectional view which schematically shows the fluid conduits which are provided in the nozzle plates of the apparatus and which are inclined against the yarn running direction;
  • FIG. 8 is an arrangement drawing of the fluid conduits when the nozzle plate of the second component is viewed from above under the condition of FIG. 7;
  • FIG. 9 is an another cross-sectional view which schematically shows the fluid conduits which are provided in the nozzle plates of the apparatus and which are inclined against the yarn running direction in the section of the yarn running direction;
  • FIG. 10 is an arrangement drawing of the fluid conduits when the nozzle plate of the second component is viewed from above under the condition of FIG. 9;
  • FIG. 11 is a cross-sectional view showing a modification of the nozzle plates of the apparatus.
  • FIG. 12 shows another modification of the nozzle plate of the apparatus and it is a cross-sectional view of a nozzle component which is made integral with the nozzle plates;
  • FIG. 13 is a perspective view of the apparatus for treating yarn with fluid related to the second embodiment of the first invention of the present invention.
  • FIG. 14 is a front view showing a section of the apparatus of FIG. 13;
  • FIG. 15 is a left side view of the apparatus of FIG. 13;
  • FIG. 16 is a cross-sectional view which schematically shows the fluid conduits which are provided in the nozzle plates of the apparatus and which are laid out so that they are substantially orthogonal with the yarn running direction in the section of the yarn running direction;
  • FIG. 17 is a cross-sectional view which schematically shows the fluid conduits which are provided in the nozzle plates of the apparatus and which are inclined backward against the yarn running direction;
  • FIG. 18 is a cross-sectional view which schematically shows the fluid conduits which are provided in the nozzle plates of the apparatus and which are inclined forward against the yarn running direction;
  • FIG. 19 is a cross-sectional view which schematically shows another example wherein the fluid conduits provided in the nozzle plates of the apparatus are inclined against the yarn running direction;
  • FIG. 20 is an arrangement drawing of the fluid conduits when the nozzle plate of the second component is viewed from above under the condition of FIG. 19;
  • FIG. 21 is a cross-sectional view which schematically shows another example wherein the fluid conduits provided in the nozzle plates of the apparatus are inclined against the yarn running direction;
  • FIG. 22 is an arrangement drawing of the fluid conduits when the nozzle plate of the second component is viewed from above under the condition of FIG. 21;
  • FIG. 23 is a perspective view of the apparatus for treating yarn with fluid related to the second invention of the present invention.
  • FIG. 24 is a front view of the section of the apparatus of FIG. 23;
  • FIG. 25 is a left side view of the apparatus of FIG. 23;
  • FIG. 26 is a cross-sectional view which illustrates the displacement of the fluid conduits provided in the nozzle plates of the apparatus in the plane orthogonal with the yarn running direction;
  • FIG. 27 is a cross-sectional view which illustrates the inclination of the fluid conduits provided in the nozzle plates of the apparatus in the plane orthogonal with the yarn running direction;
  • FIG. 28 is a cross-sectional view which schematically shows the fluid conduits which are provided in the nozzle plates of the apparatus and which are oriented so that they are substantially orthogonal with the yarn running direction in the section of the yarn running direction;
  • FIG. 29 is a cross-sectional view which schematically shows the fluid conduits which are provided in the nozzle plates of the apparatus and which are provided with gaps between them with respect to the yarn running direction;
  • FIG. 30 is a cross-sectional view which schematically shows the fluid conduits which are provided in the nozzle plates of the apparatus and which are provided aslant to the yarn running direction in the section of the yarn running direction;
  • FIG. 31 is a cross-sectional view which schematically shows the fluid conduits which are provided in the nozzle plates of the apparatus and which are inclined against the yarn running direction;
  • FIG. 32 is a cross-sectional view which schematically shows the fluid conduits which are provided in the nozzle plates of the apparatus and which are inclined against each other with respect to the yarn running direction;
  • FIG. 33 is a cross-sectional view which schematically shows fluid conduits which have been added outside a plurality of fluid conduits provided in the apparatus;
  • FIG. 34 is a cross-sectional view which schematically shows a case wherein the fluid conduits provided in the nozzle plates of the apparatus are opened in a recess formed in the yarn running direction;
  • FIG. 35 is a cross-sectional view which shows a case wherein the nozzle plate of the apparatus is made of a single C-shaped cylindrical nozzle component;
  • FIG. 36 is a cross-sectional view which shows a conventional apparatus for treating yarn with fluid wherein the fluid conduits provided in one component are arranged aslant;
  • FIG. 37 is a cross-sectional view which shows a conventional apparatus wherein the fluid conduits provided in one component are in parallel to each other and orthogonal with the inner wall.
  • the first component 1 and the second component 2 are fixed with bolts 4 and 4 via a spacer 3 as shown in FIG. 1 through FIG. 3.
  • nozzle plates 1b and 2b are mounted on main bodies 1a and 2a with bolts 4 and 7 and bolts 4 and 8 via sealing materials, e.g., O rings 5 and 6.
  • the main bodies 1a and 2a are provided with connection holes 1c and 2c, and the nozzle plates 1b and 2b are .provided with fluid conduits 1d and 2d.
  • the fluid conduits 1d and 2d are opened in the inner walls 1e and 2e of the nozzle plates 1b and 2b.
  • the inner walls 1e and 2e of the nozzle plates 1b and 2b and the axes A L1 and A L2 of the fluid conduits 1d and 2d form a yarn treating region R T for interlacing a yarn.
  • the fluid conduits 1d and 2d are spaced away from each other by the distance E (see FIG. 2) defined by the axes A L1 and A L2 and they are inclined so that they eject fluid toward the yarn treating region R T .
  • an auxiliary line L A which passes through an intersection P of the diagonal line and which is orthogonal with the inner walls 1e and 2e of the nozzle plates 1b and 2b is drawn in the parallelogrammatic yarn treating region R T of FIG. 4.
  • L 1 The distance from the point at which the axis A L1 of the fluid conduit 1d intersects with the inner wall 1e of the nozzle plate 1b to the auxiliary line L A is defined as L 1 and the distance from the point at which the axis A L1 of the fluid conduit 1d intersects with the inner wall 2e of the nozzle plate 2b to the auxiliary line L A is defined as L 2 .
  • an angle ⁇ formed by the inner walls, which constitute the major part of the yarn treating region R T (see FIG. 4), and the axes A L1 and A L2 is 90° or less.
  • the yarn consisting of a multifilament running through the yarn treating region R T usually exhibits lateral chord vibration in FIG. 2.
  • the yarn to be interlaced behaves two-dimensionally due to the fluid ejecting from the fluid conduit 2d and deflects toward the fluid conduit 1d located outside, the yarn will be drawn back into the central yarn treating region R T by the fluid which ejects from the fluid conduit 1 d .
  • the same effect applies when the yarn deflects toward the fluid conduit 2d.
  • the yarn running through the yarn treating region R T exhibits extremely self-stable chord vibration behavior in which it shuttles between the fluid conduit 1d and the fluid conduit 2d.
  • the yarn which is interlaced laterally vibrates through the yarn treating region R T between the fluid conduits 1d and 2d in FIG. 2 and it is effectively provided with opened portions and interlaced portions by the fluid ejected from the fluid conduits 1d and 2d, thereby turning into a yarn with a high level of coherence.
  • the second component 2 has a long inserting hole 2f for inserting the bolts 4 of the main body 2a and the nozzle plate 2b. This makes it possible to adjust a distance E (see FIG. 2) between the axes A L1 and A L2 of the fluid conduits 1d and 2d in the horizontal direction in the apparatus of this embodiment.
  • pressurized air is supplied to the connection holes 1d and 2d from a fluid supplying source like a pressurized air source, not shown, while allowing the yarn, which is to be interlaced, to run through the pap formed by the first and second components 1 and 2. Then the pressurized air passes through the fluid conduits 1d and 2d and ejects as shown by the arrowheads in FIG. 2.
  • the yarn is effectively interlaced by the pressurized air, which ejects out through the fluid conduits 1d and 2d, in the yarn treating region R T while it runs between the first and second components 1 and 2.
  • the pressurized air ejected from the fluid conduits 1d and 2d bumps against the inner walls 1e and 2e of the facing nozzle plates 1b and 2b without bumping against each other, then it is discharged out of the apparatus along the inner walls 1e and 2e of the nozzle plates 1b and 2b.
  • the pressurized air is discharged, it is rapidly discharged with a high density because there is no obstacles blocking its discharge except the yarn.
  • the pressurized air ejected from the fluid conduits 1d and 2d is allowed to maintain its own high potential energy, thus permitting effective use of the dynamic pressure owned by the pressurized air for interlacing the yarn.
  • the pressurized air for interlacing the yarn is dense in the area where it has ejected from the fluid conduits 1d and 2d but sparse in the adjoining areas in the section shown in FIG. 2.
  • the presence of the sparse, dense, and sparse areas of the pressurized air further makes it easy to form opened and interlaced portions of the yarn, ensuring effective interlacing of the yarn.
  • a gap G (see FIG. 2) between the components 1 and 2 can be changed by adjusting the thickness of a spacer 3.
  • At least one each of the fluid conduits 1d and 2d may be provided in each of the components 1 and 2, and the distance E in the horizontal direction between the fluid conduits 1d and 2d varies depending on the gap G between the first and second components 1 and 2, which face against each other, and the type of yarn to be interlaced.
  • the fluid conduits 1d and 2d have, for example, a round section, however, the configuration is not limited to the round section; it is needless to say that its configuration may alternatively be an ellipse or a polygon such as a triangle or quadrangle.
  • the major part, which constitutes the yarn treating region R T , of inner walls 1e and 2e of the nozzle plates 1b and 2b facing against each other has a flat plane.
  • the loss in the energy of the pressurized air ejected from the fluid conduits 1d and 2d is minimized and the dynamic pressure of the ejecting pressurized air can be effectively used for interlacing.
  • the fluid conduits 1d and 2d provided in the nozzle plates 1b and 2b of the first and second components 1 and 2 are oriented so that they are orthogonal with the yarn running direction as shown by the arrowhead in FIG. 6 in the section in the yarn running direction.
  • the fluid conduits 1d and 2d are oriented aslant to the yarn running direction shown by the arrowhead in FIG. 7.
  • the fluid conduits 1d and 2d are made so that the pressurized air is ejected in the yarn running direction as shown by the arrowhead in FIG. 8 which shows the nozzle plate 2b observed from above.
  • FIG. 6 and FIG. 7 give schematic models used for the purpose of clearly showing the direction of the inclination of the fluid conduits 1d and 2d in the section in the yarn running direction. The same applies to FIG. 9, FIG. 16 through FIG. 19, FIG. 21, FIG. 28 through FIG. 32 and FIG. 34.
  • the same effect can be obtained when the fluid conduit 1d of the fluid conduits 1d and 2d is oriented in the yarn running direction or when the fluid conduit 2d is oriented in the downstream side with respect to the yarn running direction as shown by the arrowhead.
  • the nozzle plates 1b and 2b, which constitute the inner walls 1e and 2e of the first and second components 1 and 2 are provided with projecting walls 1g and 2g which juts out toward their associated nozzle plates 1b and 2b at the portions adjacent to the surface which constitutes the major part for forming the yarn treating region R T in the section orthogonal with the yarn running direction as shown in FIG. 11.
  • the nozzle plates 1b and 2b may be made into one piece and a cylindrical nozzle component 9 with fluid conduits 9a and 9a opened in a central yarn running space 9b may be used.
  • the fluid conduits 9a and 9a are provided with a gap between their axes and are inclined so that the fluid is jetted out toward the yarn running space 9b which serves as the yarn treating region. This should help reduce the number of components that make up the apparatus for treating yarn with fluid.
  • the diameter of the fluid conduits 1d and 2d was set to 1.6 mm
  • the horizontal distance E between the axes A L1 and A L2 of the fluid conduits 1d and 2d was set to 5 mm
  • the gap G between the nozzle plates 1b and 2b was set to 2 mm
  • the angle ⁇ of the fluid conduits 1d and 2d inclined against the nozzle plates 1b and 2b was set to 60°
  • a nylon yarn consisting of 420 deniers and 72 filaments was allowed to run at a yarn speed of 1,000 m/min.
  • the treating tension of the nylon yarn was 20 g.f before it was subjected to the treating apparatus and 50 g.f after it was subjected to the interlacing.
  • the monofilaments constituting the nylon yarn were effectively provided with opened and interlaced portions, producing a yarn which features a high level of coherence, i.e., 28 firm interlaced portions per meter.
  • the diameter of the fluid conduits 1d and 2d was set to 1.0 mm
  • the horizontal distance E between the axes A L1 and A L2 of the fluid conduits 1d and 2d was set to 7.4 mm
  • the gap G between the nozzle plates 1b and 2b was set to 2 mm
  • the angle ⁇ of inclination of the fluid conduits 1d and 2d with respect to the nozzle plates 1b and 2b was set to 30°
  • a Tetoron yarn of 75 deniers, consisting of 36 filaments was allowed to run at a yarn speed of 1,000 m/min., with a treating tension of 5 g.f applied to the yarn, to interlace the yarn by ejecting pressurized air of 6 kg/cm 2 .G from the fluid conduits 1d and 2d.
  • Tetoron yarn of 75 deniers consisting of 36 filaments was subjected to the interlacing process under the same treatment conditions, using the yarn treating apparatus shown in FIG. 36.
  • the monofilaments of the Tetoron yarn interlaced by using the apparatus of the present example were effectively provided with opened and interlaced portions, and had 16.3 firm interlaced portions per meter.
  • the Tetoron yarn interlaced using the apparatus shown in FIG. 36 had only 12.0 firm interlaced portions per meter.
  • the first component 11 and the second component 12 are fixed with bolts 14 and 14 via a spacer 13.
  • the nozzle plates 11b and 12b of the first component 11 and the second component 12 are mounted on main bodies 11a and 12a with bolts 14, 17 and bolts 14, 18 via sealing materials, e.g., O rings 15 and 16.
  • the main bodies 11a and 12a are provided with connection holes 11c and 12c.
  • the nozzle plates 11b and 12b are provided with a sub fluid conduit 11d and a fluid conduit 11e and a sub fluid conduit 12d and a fluid conduit 12e which are opened in the inner walls 11f and 12f and which are in parallel to each other.
  • the sub fluid conduits 11d and 12d are inclined against the nozzle plates 11b and 12b by the angle ⁇ and are oriented so that they face against each other with their axes aligned.
  • the fluid conduits 11e and 12e form the yarn treating region R T for interlacing yarn with the axes A L11 and A L12 and the inner walls 11f and 12f of the nozzle plates 11b and 12b.
  • the fluid conduits 11e and 12e are provided with a gap between the axes A L11 and A L12 and are inclined so that the fluid is ejected toward the yarn treating region R T .
  • the sub fluid conduits 11d and 12d and the fluid conduits 11e and 12e are arranged so that the angle ⁇ formed by the inner walls 11f and 12f of the nozzle plates 11b and 12b, which inner walls 11f and 12f constitute the major part for producing the yarn treating region R T , and the axes A L11 and A L12 becomes 90° or less.
  • pressurized air is supplied to the connection holes 11c and 12c from a fluid supplying source like a pressurized air source, not shown, while allowing the yarn, which is to be interlaced, to run through the gap formed by the nozzle plates 11b and 12b. Then, the pressurized air passes through the sub fluid conduits 11d and 12d and fluid conduits 11e and 12e, then it ejects out aslant toward the nozzle plates 11b and 12b facing against each other.
  • the yarn vibrates two-dimensionally while it runs and it is effectively interlaced in the yarn treating region R T by the pressurized air ejected from the sub fluid conduits 11d and 12d and the fluid conduits 11e and 12e. Since the sub fluid conduits 11d and 12d and the fluid conduits 11e and 12e are located aslant to the nozzle plates 11b and 12b, the ejecting pressurized air bumps aslant against the running yarn. This increases the chances of the yarn crossing the pressurized air, leading to high coherence of the yarn.
  • the gap G (see FIG. 14) between the components 11 and 12 can be changed by adjusting the thickness of a spacer 13 in accordance with the type of yarn to be interlaced.
  • each of the sub fluid conduits 11d and 12d which face against each other, may be provided at least one in each of the nozzle plates 11b and 12b.
  • each of the fluid conduits 11e and 12e may be provided at least one in each of the nozzle plates 11b and 12b.
  • the horizontal distance between them varies depending on the gap G between the first and second components 11 and 12, which face against each other, and the type of yarn to be interlaced.
  • the sub fluid conduits 11d and 12d and the fluid conduits 11e and 12e have, for example, a round section, however, the configuration is not limited to the round section; it is needless to say that its configuration may be an ellipse or a polygon such as a triangle or quadrangle.
  • the major part, which constitutes the yarn treating region R T , of inner walls 11f and 12f of the nozzle plates 11b and 12b facing against each other has a flat plane.
  • the loss in the energy of the pressurized air ejected from the sub fluid conduits 11d and 12d is minimized and the dynamic pressure of the ejecting pressurized air can be effectively used for interlacing.
  • a horizontal displacement e 1 of the fluid conduit 11e with respect to the fluid conduit 11d and a horizontal displacement e 2 of the fluid conduit 12e with respect to the fluid conduit 12d are set to a value between 1.5 times and 6 times, preferably between 2 times and 4 times the inner diameter, d 0 , of the sub fluid conduits 11d and 12d.
  • the sub fluid conduits 11d and 12d and the fluid conduits 11e and 12e provided in the nozzle plates 11b and 12b of the first and second components 11 and 12 are oriented so that they are substantially orthogonal with the yarn running direction shown by the arrowhead in the section in the yarn running direction as shown in FIG. 16 or they are inclined against the yarn running direction shown by the arrowhead in FIG. 17 and FIG. 18.
  • the sub fluid conduit 11d and 12d and the fluid conduits 11e and 12e are inclined against the yarn running direction, as shown in FIG. 19, for example, the sub fluid conduit 11d and the fluid conduits 11e and 12e maybe inclined so that the pressurized air is ejected in the yarn running direction and the sub fluid conduit 12d may be inclined so that the pressurized air is ejected in the opposite direction from the yarn running direction.
  • FIG. 20 which illustrates the opening of the fluid conduits 12d and 12e of the nozzle plate 12b observed from above, the sub fluid conduits 11d and 12d and the fluid conduit 11e are located in parallel to each other, while the fluid conduit 12e is located axially symmetrical to the fluid conduit 11e with respect to the line indicated by the arrowhead showing the yarn running direction.
  • the sub fluid conduit 11d and the fluid conduits 11e and 12e may be inclined so that the pressurized air is ejected in the opposite direction from the yarn running direction, while the sub fluid conduit 12d is inclined so that the pressurized air is ejected in the yarn running direction.
  • the sub fluid conduit 12d is inclined so that the pressurized air is ejected in the yarn running direction.
  • the diameter of the sub fluid conduits 11d and 12d and the fluid conduits 11e and 12e was set to 1.6 mm
  • the horizontal distance between the axes of the adjoining fluid conduits 11d, 11e and fluid conduits 12d, 12e, that is, the displacements e 1 , e 2 were set to 5 mm
  • the gap G between the nozzle plates 11b and 12b was set to 2 mm
  • the angle ⁇ of the sub fluid conduits 11d, 12d and the fluid conduits 11e, 12e inclined against the nozzle plates 11b and 12b was set to 60°
  • a nylon yarn consisting of 420 deniers and 72 filaments was allowed to run at a yarn speed of 1,000 m/min. to interlace the yarn by ejecting a pressurized air of
  • the monofilaments constituting the nylon yarn were effectively provided with opened and interlaced portions, producing a yarn which features a high level of coherence, i.e., 27 to 34 firm interlaced portions per meter and the yarn was effectively prevented from jumping out of the fluid conduits 11e and 12e during the interlacing process.
  • the diameter of the sub fluid conduits 11d and 12d and the diameter of the fluid conduits 11e and 12e were individually set to 1.0 mm
  • the displacement e 1 between the axes of the adjoining fluid conduits 11d, 11e and the displacement e 2 between the axes of the adjoining fluid conduits 12d, 12e were set to 1.5 mm
  • the gap G between the nozzle plates 11b and 12b was set to 2 mm
  • the angle ⁇ of inclination of the sub fluid conduits 11d, 12d and the fluid conduits 11e, 12e with respect to the nozzle plates 11b and 12b was set to 60°.
  • a Tetoron yarn of 300 deniers consisting of 96 filaments was subjected to the interlacing process under the same treatment conditions, using the yarn treating apparatus shown in FIG. 36.
  • pressurized air was ejected at 6 kg/cm 2 .G for the interlacing process.
  • the monofilaments of the Tetoron yarn interlaced by using the apparatus of the present example were effectively provided with opened and interlaced portions, and had 27.0 firm interlaced portions per meter.
  • the Tetoron yarn interlaced using the apparatus shown in FIG. 36 had only 13.5 firm interlaced portions per meter.
  • the first component 21 and the second component 22 are fixed with bolts 24 and 24 via a spacer 23.
  • the nozzle plates 21b and 22b of the first component 21 and the second component 22 are mounted on main bodies 21a and 22a with bolts 24, 27 and bolts 24, 28 via sealing materials, e.g., O rings 25 and 26.
  • the main bodies 21a and 22a are provided with connection holes 21c and 22c, while the nozzle plates 21b and 22b are provided with a plurality of fluid conduits 21d and 22d.
  • a plurality of fluid conduits 21d and 22d are opened in the inner walls 21f and 22f (see FIG. 25) of the nozzle plates 21b and 22b, respectively, as shown in FIG. 24, and they are arranged so that they face against each other and they are inclined against each other.
  • the plurality of fluid conduits 21d and 22d are laid out in parallel between the axes L A of adjoining fluid conduits with specified intervals.
  • the fluid conduits 21d 2 through 21d 6 and 22d 1 through 22d 5 are provided so that the axes of the fluid conduits 21d 2 through 21d 6 and 22d 1 through 22d 5 are inclined by an acute angle ⁇ against the nozzle plate 22b as shown in FIG. 27 cut with a plane which is orthogonal with the running direction of a yarn T. Inclining the fluid conduits like this makes it easier for the yarn to laterally vibrate by the ejecting fluid, leading to enhanced interlacing performance.
  • each single yarn exhibits lateral chord vibration in the cross section of the apparatus, for example, shown in FIG. 27 and they are interlaced with each other.
  • the axes L A21 and L A22 of the fluid conduits 21d and 22d located on the outermost side of the plurality of fluid conduits 21d and 22d and the nozzle plates 21b and 22b form a wide yarn treating region between the nozzle plates 21b and 22b for interlacing the yarn.
  • the second component 22 has an elliptic inserting hole 22e in which a bolt 24 of a main body 22a and the nozzle plate 22b is inserted. This makes it possible to slightly adjust the arranging direction of the fluid conduits 21d and 22d which face against each other in the apparatus 20 of this embodiment.
  • pressurized air is supplied to connection holes 21c and 22c from a fluid supplying source like a pressurized air source, not shown, while allowing the yarn, which is to be interlaced, to run through the gap formed by the first and second components 21 and 22. Then the pressurized air passes through a plurality of the fluid conduits 21d and 22d and ejects out.
  • the yarn is interlaced by the pressurized air which ejects out through the fluid conduits 21d and 22d facing against each other.
  • the gap G (see FIG. 24) between the components 21 and 22 can be changed by adjusting the thickness of the spacer 23.
  • the fluid conduits 21d and 22d have, for example, a round section, however, the configuration is not limited to the round section; it is needless to say that its configuration-may be an ellipse or a polygon such as a triangle or quadrangle.
  • the said plurality of fluid conduits 21d and 22d are provided with their axes displaced so that the fluid conduits 21d and 22d facing against each other share a common area where they overlap in a plane of projection which is perpendicular to the axial direction of the fluid conduits 21d and 22d.
  • the axis L A21 of the fluid conduits 21d provided in the nozzle plate 21b and the axis L A22 of the corresponding fluid conduit 22d provided in the nozzle plate 22b are horizontally displaced.
  • the displacement "e” depends on the horizontal distance between the corresponding fluid conduits 21d and 22d and the size of the fluid conduits. More preferably, the displacement "e” is set so that the projection area in the plane of projection perpendicular to the axial direction ranges from 50% to 100%.
  • the inner walls 21f and 22f of the nozzle plates 21b and 22b in which a plurality of fluid conduits 21d and 22d are opened have flat surfaces.
  • the fluid conduits opened in the first and second components 21 and 22 may be provided so that the fluid conduits 21d and 22d facing against each other are substantially orthogonal with the running direction of the yarn T as shown in FIG. 28 wherein the nozzle plates 21b and 22b are cut along the running direction of the yarn T, or they may be provided in the running direction of the yarn T with intervals given between them as shown in FIG. 29.
  • the fluid conduits 21d and 22d may be formed such that each pair of fluid conduits 21d and 22d, aligned with each other, extends aslant with respect to the running direction of the yarn T.
  • the fluid conduits 21d and 22d may be laid out in such a manner that adjacent pairs of fluid conduits 21d and 22d, individually aligned with each other, extend crossways in different directions, as shown in FIG. 32.
  • the aforesaid first and second components 21 and 22 are provided with additional fluid conduits 21g and 22g, one each, for ejecting a fluid to a running yarn, the additional fluid conduits 21g and 22g being located outside the plurality of fluid conduits 21d and 22d.
  • first and second components 21 and 22 may be provided with recesses 21h and 22h, between which the yarn runs, the recesses being made in the inner walls of the nozzle plates 21b and 22b as shown in FIG. 34 which illustrates the components cut by a plane orthogonal with the yarn running direction.
  • the nozzle plates 21b and 22b may be combined into a cylindrical nozzle component 30 which has a C-shape cross section, and a fluid may be ejected from a plurality of fluid conduits 30a to interlace the yarn, the fluid conduits being provided in the nozzle component 30 and facing against each other.
  • the diameter of the fluid conduits 21d and 22d was set to 1.6 mm
  • the horizontal distance between the adjoining fluid conduits 21d and 21d and between adjoining fluid conduits 22d and 22d were set to 5 mm
  • the gap G between the nozzle plates 21b and 22b was set to 10 mm
  • the displacement "e" of the fluid conduits 21d and 22d facing against each other was set to 0 mm, 0.8 mm, and 2.5 mm
  • a flat tow yarn of 64,000 deniers and 64,000 filaments was allowed to run at a yarn speed of 4 m/min. to interlace the yarn by ejecting a pressurized air of 2 kg/cm 2 .G from the fluid conduits 21 d and 22d.
  • the yarn was provided with interlaced portions, where the filaments were interlaced partially, and opened portions which are free of interlacing, and the interlaced portions were overlapped widthwise, thus providing the yarn with coherence wherein the yarn was interlaced as flat meshes of a net as a whole.
  • the interlaced portions were not bundled roundly, which used to be a problem with the interlacing performed by the conventional apparatuses, thus proving improved coherence.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatment Of Fiber Materials (AREA)
US08/143,134 1992-11-02 1993-10-29 Apparatus for treating yarn with fluid Expired - Fee Related US5398392A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP4-294168 1992-11-02
JP04294168A JP3141578B2 (ja) 1992-11-02 1992-11-02 流体処理装置
JP04294927A JP3141579B2 (ja) 1992-11-04 1992-11-04 流体処理装置
JP4-294927 1992-11-04
JP04295585A JP3141580B2 (ja) 1992-11-05 1992-11-05 流体処理装置
JP4-295585 1992-11-05

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EP (1) EP0596431B1 (de)
KR (1) KR100301924B1 (de)
DE (1) DE69316534T2 (de)
TW (1) TW224495B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6134759A (en) * 1998-03-27 2000-10-24 Toray Industries, Inc. Apparatus for fluid treatment of yarn and a yarn composed of entangled multifilament
US6868593B1 (en) * 1999-09-22 2005-03-22 Ryuji Mitsuhashi Tandem interlacing textile jet nozzle assembly
US11280030B2 (en) * 2018-05-29 2022-03-22 Nicolas Charles Sear Textile interlacing jet with smooth yarn channel

Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
DE4432594A1 (de) * 1994-09-13 1996-03-14 Takata Europ Gmbh Gurtstraffer bei Sicherheitsgurtanordnungen in Kraftfahrzeugen
EP1207226B1 (de) * 1998-03-30 2003-06-04 Toray Industries, Inc. Vorrichtung zur Behandlung eines Garnes mit einer Flüssigkeit und verwirbeltes Multifilamentgarn
US7406818B2 (en) 2004-11-10 2008-08-05 Columbia Insurance Company Yarn manufacturing apparatus and method

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US2985995A (en) * 1960-11-08 1961-05-30 Du Pont Compact interlaced yarn
US3115691A (en) * 1961-05-31 1963-12-31 Du Pont Apparatus for interlacing multifilament yarn
US3262179A (en) * 1964-12-01 1966-07-26 Du Pont Apparatus for interlacing multifilament yarn
US3727275A (en) * 1970-06-18 1973-04-17 Rhodiaceta Process and apparatus for interlacing strands
JPS5244689A (en) * 1975-10-06 1977-04-07 Toyota Motor Corp Oxygen sensor
US4070815A (en) * 1974-11-28 1978-01-31 Toray Industries, Inc. Textured multifilament yarn
JPS5966532A (ja) * 1982-10-06 1984-04-16 帝人株式会社 糸条交絡処理装置
JPS61194243A (ja) * 1985-02-18 1986-08-28 三菱レイヨン株式会社 流体噴射処理装置
US4949441A (en) * 1989-10-13 1990-08-21 Ethridge Fredrick A Polylaminar apparatus for fluid treatment of yarn
US5079813A (en) * 1990-02-21 1992-01-14 E. I. Du Pont De Nemours And Company Interlacing apparatus

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US4307497A (en) * 1977-05-04 1981-12-29 Ppg Industries, Inc. Method of treating textile yarns
DE2913645A1 (de) * 1979-04-05 1980-10-16 Barmag Barmer Maschf Duese zum verflechten von multifilamentfaeden
DE3019302A1 (de) * 1980-05-21 1981-11-26 Hoechst Ag, 6000 Frankfurt Verwirbelungsduese
US4422224A (en) * 1981-12-17 1983-12-27 Badische Corporation Apparatus for interlacing multifilament yarn

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Publication number Priority date Publication date Assignee Title
US2985995A (en) * 1960-11-08 1961-05-30 Du Pont Compact interlaced yarn
US3115691A (en) * 1961-05-31 1963-12-31 Du Pont Apparatus for interlacing multifilament yarn
US3262179A (en) * 1964-12-01 1966-07-26 Du Pont Apparatus for interlacing multifilament yarn
US3727275A (en) * 1970-06-18 1973-04-17 Rhodiaceta Process and apparatus for interlacing strands
US4070815A (en) * 1974-11-28 1978-01-31 Toray Industries, Inc. Textured multifilament yarn
JPS5244689A (en) * 1975-10-06 1977-04-07 Toyota Motor Corp Oxygen sensor
JPS5966532A (ja) * 1982-10-06 1984-04-16 帝人株式会社 糸条交絡処理装置
JPS61194243A (ja) * 1985-02-18 1986-08-28 三菱レイヨン株式会社 流体噴射処理装置
US4949441A (en) * 1989-10-13 1990-08-21 Ethridge Fredrick A Polylaminar apparatus for fluid treatment of yarn
US5079813A (en) * 1990-02-21 1992-01-14 E. I. Du Pont De Nemours And Company Interlacing apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6134759A (en) * 1998-03-27 2000-10-24 Toray Industries, Inc. Apparatus for fluid treatment of yarn and a yarn composed of entangled multifilament
US6868593B1 (en) * 1999-09-22 2005-03-22 Ryuji Mitsuhashi Tandem interlacing textile jet nozzle assembly
US11280030B2 (en) * 2018-05-29 2022-03-22 Nicolas Charles Sear Textile interlacing jet with smooth yarn channel

Also Published As

Publication number Publication date
KR100301924B1 (ko) 2001-10-22
DE69316534D1 (de) 1998-02-26
KR940011694A (ko) 1994-06-21
EP0596431A1 (de) 1994-05-11
DE69316534T2 (de) 1998-05-07
EP0596431B1 (de) 1998-01-21
TW224495B (de) 1994-06-01

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